164020 has 24 divisors (see below), whose sum is σ = 352800. Its totient is φ = 64032.

The previous prime is 164011. The next prime is 164023. The reversal of 164020 is 20461.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (14700).

2¹⁶⁴⁰²⁰ is an apocalyptic number.

164020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164020 is an abundant number, since it is smaller than the sum of its proper divisors (188780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164020 is a wasteful number, since it uses less digits than its factorization.

164020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 164020 is about 404.9938271135. The cubic root of 164020 is about 54.7392617403.

Adding to 164020 its reverse (20461), we get a palindrome (184481).

The spelling of 164020 in words is "one hundred sixty-four thousand, twenty".